@article{01736436, title = {Integral structures on H-type Lie algebras.}, journal = {Journal of Lie Theory}, volume = {12}, year = {2002}, pages = {69-79}, zbl = {1035.17018}, language = {en}, url = {http://dml.mathdoc.fr/item/01736436} }
Crandall, Gordon; Dodziuk, Jósef. Integral structures on H-type Lie algebras.. Journal of Lie Theory, Tome 12 (2002) pp. 69-79. http://gdmltest.u-ga.fr/item/01736436/